Changes in the Riverbed Due to Regulator Gate on the Loji River
Rizky Herdianto Singgih(a), Arno Adi Kuntoro(b), Suardi Natasaputra(b), Sandhi Akhmad Juliadi (a)

(a)Master Study Program of Water Resources Management, Civil Engineering Study Program, Faculty of Civil and Environmental Engineering, Bandung Institute of Technology, Bandung, 40132, Indonesia
(b)Water Resources Engineering Research Group, Civil Engineering Study Program, Faculty of Civil and Environmental Engineering, Bandung Institue of Technology, Bandung 40132, Indonesia

Abstract

The city of Pekalongan is located in the north of Java Island in Central Java Province. Some of the problems that exist in Pekalongan City are floods and tidal floods originating from the runoff of the Loji River and tides due to land subsidence and changes in land use.

The government through BBWS Pemali Juana has conducted a technical study of the flood control which is the construction of normalization, regulator gate, moveable weir and retention ponds on the Loji River.

This study aims to analyze changes in the riverbed from the development on the Loji River.

The analysis was carried out using HEC RAS 1D to determine the changes in the bottom of the Loji River.

The results of the construction carried out on the Loji River show changes in the river bed with increased sedimentation and erosion of the river bed.

This research is useful to provide input to the Government in policy making on planning, implementation, and monitoring based on integrated water resources management.

Keywords: Loji River, River Morphology, Sediment

Topic: Engineering